U radu programskog paketa feh uočene su tri sigurnosne ranjivosti. Napadač ih može iskoristiti za pokretanje proizvoljnih naredbi te prepisivanje pojedinih datoteka putem symlink napada.

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Gentoo Linux Security Advisory                           GLSA 201110-08
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                                            http://security.gentoo.org/
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 Severity: High
    Title: feh: Multiple vulnerabilities
     Date: October 13, 2011
     Bugs: #325531, #354063
       ID: 201110-08

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Synopsis
========

Multiple vulnerabilities were found in feh, the worst of which leading
to remote passive code execution.

Background
==========

feh is a fast, lightweight imageviewer using imlib2.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-gfx/feh                 < 1.12                     >= 1.12

Description
===========

Multiple vulnerabilities have been discovered in feh. Please review the
CVE identifiers referenced below for details.

Impact
======

A malicious entity might entice a user to visit a URL using the
--wget-timestamp option, thus executing arbitrary commands via shell
metacharacters; a malicious local user could perform a symlink attack
and overwrite arbitrary files.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All feh users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-gfx/feh-1.12"

References
==========

[ 1 ] CVE-2010-2246
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2246
[ 2 ] CVE-2011-0702
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0702
[ 3 ] CVE-2011-1031
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1031

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 http://security.gentoo.org/glsa/glsa-201110-08.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
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License
=======

Copyright 2011 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5